Statistica General Optimization Startup Panel - Genetic Algorithm Tab

Select the Genetic algorithm tab of the Statistica General Optimization Startup Panel to access the options described here. Use the options on this tab to change the settings for the GA optimization.

Option Description
Seed Specifies the value of the seed for the random number generator used by the genetic algorithm. For different start values use different seeds.
Population The population size for the genetic algorithm per generation. Larger population sizes generally yield more accurate optimization results at the expense of more computation. Small population sizes may prevent the algorithm from exploring the complete search space.
Generations The more generations created the better, in general, the solution, but excess values of this option too, like the population size, comes at the expense of more computation overhead.
Crossover probability Specifies how often the crossover is performed. Without crossover, the new generations are identical to parents (no progress in optimization). You need to have a non-zero crossover probability so some good parts of the old generation (previous optimization step) are passed on to the next generation.
Mutation probability Specifies how often future parts of a chromosome are mutated. You need to maintain the mutation probability so the algorithm progresses with a sufficient speed. Otherwise, the optimization might not reach its optimal point.
Change/review settings Displays a Statistica input spreadsheet that you can use to review and modify the current optimization settings. Note that any modifications made to this spreadsheet change the current optimization settings but leave the original optimization spreadsheet (that is, the active spreadsheet) unmodified. To make your changes permanent in a new spreadsheet, use the Settings option (see the next option description). Note that any changes you make using this option are also displayed in the data grid on this tab.
Settings Creates a spreadsheet for the current settings as displayed in the data grid.